American Standards is a hardcore band from Phoenix, Arizona and recently got in the studio with Kevin Antreassian from The Dillinger Escape Plan for a brand new song called "Phantom Limb." The song is a pretty jarring listening experience that goes from mosh-worthy riffs to clean vocals, and maybe a little bit of both at once, all in just under three minutes.
Check out what else American Standards has done via their Bandcamp.